Upgrade 7S to NEU power?

[Andris Golts]

Hi all im running a Feigo 7s in my 23'' mono on 2s lipo's mono runs a constant 40 mph with stable flat ride and awsome turning capabilities while running yesterday the 7s turned only about 1/2 the usual rpm . I think its time to upgrade to a NEU B/L motor. Which NEU motor would be a good replacement for the 7s ? I would'nt mind a extra 5 or 10 mph. What would cause the 7s to lose 1/2 its rpm the motor has never been overheated . Regards Andris Golts,

[Alexgar]

Could your battery be weak and setting of your low voltage cuttoff?

[Alexgar]

Maybe a 1412 /1d but I'm thinking its your battery or esc

[ray schrauwen]

Even a 1509 1.5D would be a major step up in HP from the 7S. Like the other guys have said, you need to check you batts and esc settings.

Sorry I missed the last meeting, I have a vehicle now.

On a side note... If that TP Power motor I sold you has too much RPM for your bigger Wild thing mono maybe I'll trade you for a NEU 1521 1.5D?? It has approx. 1900kv as compared to 2200kv. I wish I had not sold it as I'm building a P-Sport Hydro it would shoe into very well... oh well....

[Andris Golts]

Thanks to all for your for your replies checked low voltage cut off on esc and lipo's no issues with either and temporally installed a Leopard 2860 4050 KV AND THE MONO CAME BACK TO LIFE gps at 38 mhp. Regards Andris Golts.

[Alexgar]

glad to hear. what prop are you running im putting together a 21" mono with a 6s motor an 2s 5000(40c) and dont know where to start with props

[Andris Golts]

Hi Alexgar to date i have found the x432 is the most efficient prop. I may also experiment with a x632 and x435. Regards Andris Golts.

[Alexgar]

good to here i have all s/b x435 cut to 32mm x435 and a y536 in my box . Im a little worried with all those rpms(5900+/- and amp draw(going to use a 99 const/120 peak amp esc) if im in the wrong let me know this will be my first 2s boat
thanks Alex

[Andris Golts]

Hi Alex looking at the Feigo chart the 6s draws 108 amps i would try a x427 and x430 prop first to see if you can unload the smaller props first and work your way up in prop size checking all temps and current draw let me know how you make out. Regards Andris Golts.

[Andris Golts]

Hi Alex looking at the Feigo chart the 6s draws 108 amps i would try a x427 and x430 prop first to see if you can unload the smaller props first and work your way up in prop size checking all temps and current draw let me know how you make out. Regards Andris Golts.